<template>
    <div class="goodsinfo-container">
        <transition
        @before-enter="beforeEnter"
        @enter="enter"
        @after-enter="afterEnter">
            <div class="ball" v-show="ballFlag" ref="ball"></div>
        </transition>
        <!-- 图片轮播图 -->
        <div class="mui-card">
            <div class="mui-card-content">
                <div class="mui-card-content-inner">
                   <swiper :lunbotuList="lunbotuList" :isfull="false"></swiper>
                </div>
            </div>
		</div>

        <!-- 购买信息 -->
        <div class="mui-card">
				<div class="mui-card-header">{{goodsinfo.title}}</div>
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<p>
              市场价:<del>{{goodsinfo.market_price}}</del>&nbsp;&nbsp;销售价:<span class="now_price">￥{{goodsinfo.sell_price}}</span>
            </p>
            <p>购买数量：<numbox @getcount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox></p>
            <p>
                <mt-button type="primary" size="small">立即购买</mt-button>
                <mt-button type="danger" size="small" @click="addToShopCart()">加入购物车</mt-button>
            </p>
					</div>
				</div>
			</div>

        <!-- 商品参数 -->
        <div class="mui-card">
				<div class="mui-card-header">商品参数</div>
				<div class="mui-card-content">
					<div class="mui-card-content-inner">
						<p>商品货号：{{goodsinfo.goods_no}}</p>
                        <p>库存情况：{{goodsinfo.stock_quantity}}</p>
                        <p>上架时间：{{goodsinfo.add_time|dateFormart}}</p>
					</div>
				</div>
				<div class="mui-card-footer">
                    <mt-button type="primary" size="large" plain @click="goDesc(id)">图文介绍</mt-button>    
                    <mt-button type="danger" size="large" plain @click="goComment(id)">商品评论</mt-button>
                </div>
			</div>

    </div>
</template>
<script>
//导入轮播图子组件
import swiper from "../subcomponents/swiper.vue";
//导入数字选择框子组件
import numbox from "../subcomponents/goodsinfo_numbox.vue";
export default {
  data() {
    return {
      id: this.$route.params.id,
      lunbotuList: [
        {
          img:
            "https://img.alicdn.com/imgextra/i2/883737303/O1CN0123oovmrhP4Ob3ul_!!883737303.jpg_430x430q90.jpg"
        },
        {
          img:
            "https://img.alicdn.com/imgextra/i2/1114511827/O1CN011PMo4oinYnM33YG_!!1114511827.jpg_430x430q90.jpg"
        },
        {
          img:
            "https://img.alicdn.com/imgextra/i3/2616970884/TB2RgxBb3HqK1RjSZJnXXbNLpXa_!!2616970884.jpg_430x430q90.jpg"
        }
      ],
      goodsinfo: [],
      ballFlag: false,
      selectedCount: 1
    };
  },
  created() {
    this.getLunbotu()
    this.getGoodsInfo();
  },
  methods: {
      getLunbotu(){
            this.$http.get('api/getthumimages/'+this.id).then(result=>{
                console.log(result.body.message)
                if(result.body.status===0){
                  result.body.message.forEach(item => {
                    item.img=item.img.replace("com","com/");
                    item.src=item.src.replace("com","com/");
                  });
                    this.lunbotuList=result.body.message;
                }
            })
        },

    getGoodsInfo() {
      this.$http.get("api/goods/getinfo/" + this.id).then(result => {
        if (result.body.status === 0) {
          this.goodsinfo = result.body.message[0];
        }
      });
    },
    goDesc(id) {
      //点击使用编程式导航跳转到图文介绍页面
      this.$router.push({ name: "goodsDesc", params: { id } });
    },
    goComment(id) {
      //点击跳转到评论页面
      this.$router.push({ name: "goodsComment", params: { id } });
    },
    addToShopCart() {
      this.ballFlag = !this.ballFlag;
      //拼接加入购物车的商品信息
      var goodsinfo = {
        id: this.id,
        count: this.selectedCount,
        price: this.goodsinfo.sell_price,
        selected: true
      };

      //调用 store 中的mutation 中的 addToCar
      this.$store.commit('addToCar', goodsinfo)
    },
    beforeEnter(el) {
      el.style.transform = "translate(0,0)";
    },
    enter(el, done) {
      el.offsetWidth;
      //获取页面中小球的位置
      const ballPosition = this.$refs.ball.getBoundingClientRect();

      //获取 徽标的位置
      const badgePosition = document
        .getElementById("badge")
        .getBoundingClientRect();

      const xDist = badgePosition.left - ballPosition.left;
      const ydist = badgePosition.top - ballPosition.top;

      el.style.transform = `translate(${xDist}px,${ydist}px)`;
      el.style.transition = "all 0.5s cubic-bezier(.4,-0.3,1,.68)";
      done();
    },
    afterEnter(el) {
      this.ballFlag = !this.ballFlag;
    },
    getSelectedCount(count) {
      this.selectedCount = count;
      console.log("父组件获取到的数量值" + this.selectedCount);
    }
  },
  components: {
    swiper,
    numbox
  }
};
</script>
<style lang="scss" scoped>
.goodsinfo-container {
  background-color: #eee;
  overflow: hidden;
  .now_price {
    color: red;
    font-size: 16px;
    font-weight: bold;
  }
  .mui-card-footer {
    display: block;
    button {
      margin: 15px 0;
    }
  }
  .ball {
    width: 15px;
    height: 15px;
    border-radius: 50%;
    background-color: red;
    position: absolute;
    z-index: 99;
    top: 390px;
    left: 147px;
  }
}
</style>

